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DEVELOPING THE MAINTENANCE WORKLOAD AND FORCE REQUIREMENTS USING A MODIFIED EQUATED MILEAGE PARAMETER TAKING INTO ACCOUNT THE VARIOUS VARIABLES

Canadian National measures its track maintenance workload and necessary force levels required to maintain its plant in adequate condition for traffic demands. A computerized inventory of components of the track on the system was developed. AREA track equivalents were related to today's traffic and CN experience. The factors such as speed, tonnage and curvature were used to modify the track equivalents. Values obtained from this analysis were used for track maintenance planning.